The remote host is missing an update to linux-source-2.6.20announced via advisory USN-470-1.

A security issue affects the following Ubuntu releases:

Ubuntu 7.04

This advisory also applies to the corresponding versions ofKubuntu, Edubuntu, and Xubuntu.

Details follow:

USN-464-1 fixed several vulnerabilities in the Linux kernel. Someadditional code changes were accidentally included in the Feisty updatewhich caused trouble for some people who were not using UUID-basedfilesystem mounts. These changes have been reverted. We apologize forthe inconvenience. For more information see: https://launchpad.net/bugs/117314 https://wiki.ubuntu.com/UsingUUID

The GEODE-AES driver did not correctly initialize its encryption key.Any data encrypted using this type of device would be easily compromised.(CVE-2007-2451)

The random number generator was hashing a subset of the availableentropy, leading to slightly less random numbers. Additionally, systemswithout an entropy source would be seeded with the same inputs at boottime, leading to a repeatable series of random numbers. (CVE-2007-2453)

Solution:The problem can be corrected by upgrading your system to thefollowing package versions: